Cool Sunshine Heating & Air Conditioning
Denver Metro · Residential HVAC

Every system in your home, handled by one team.

From a noisy condenser in July to a boiler that won't fire in February, our certified technicians install, maintain, and repair every major heating and cooling system for Denver Metro homes. We service all major HVAC brands.

Cool Sunshine HVAC installation
Jump to Cooling Heating Comfort & Air Quality Maintenance Emergency
01 · Cooling

Keep the Colorado summer outside.

Front Range summers are hotter and drier than they used to be. Whether your AC just needs a tune-up or it's time for a quieter, more efficient replacement, we'll size and install it right the first time.

Servicing all major brands
Carrier, Trane, Lennox, Bryant, Goodman & more
Service

Air conditioning repair, tune-up & replacement

Diagnostics on systems that won't start or won't keep up, seasonal tune-ups that catch problems before peak heat, and full replacements when it's time to retire an aging unit. Honest call on repair vs. replace, no upsell theatre.

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Install

Ductless mini-split installation

Cooling for rooms ductwork can't reach: bonus rooms, finished basements, additions, and pre-WWII homes without forced air. Quiet, zone-by-zone control and high efficiency. We'll walk every option before you commit.

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02 · Heating

Warmth that holds through January.

Five heating systems, one team that knows them all. Furnace, boiler, heat pump, dual-fuel, radiant floor — we install and service every one.

Heating system installation

Gas furnace maintenance, repair & installation

Fall tune-ups, no-heat call diagnostics, and right-sized installations from 80% to 98% AFUE. We pull permits and pass inspection on every furnace we put in.

Heat pump installation & repair

High-efficiency electric heating and cooling in one system, with current federal and Colorado rebates that often offset the upgrade cost. We'll walk you through what you qualify for.

Boiler service & repair

Hot-water and steam boilers for Denver's older neighborhoods. Annual service that keeps them efficient, leak diagnostics, and full replacements when a unit is past its life.

Dual-fuel system installation

A heat pump paired with a gas furnace, sized to switch over at exactly the right outdoor temperature. The most efficient solution for a Front Range winter without burning gas year-round.

Radiant floor heating installation

Even, draft-free warmth from the floor up — perfect for basements, bathrooms, and additions. We design, install, and tie it into your existing system.

Air handler service

The piece that quietly moves conditioned air through your house. We service, repair, and replace air handlers across every brand we touch.

03 · Comfort & Air Quality

The little upgrades that change how a house feels.

Cleaner air on wildfire-smoke days. A back bedroom that doesn't run ten degrees hotter than the living room. The difference between a furnished basement that's bearable and one nobody wants to sit in.

Indoor air quality solutions

Whole-home filtration, humidification, and UV options — sized to your house, not pulled from a one-size brochure. A real conversation about what would actually matter for the air you breathe.

Zone control system installation

Independent thermostats for different parts of the house so the upstairs and the basement stop fighting each other. Retrofit on existing ductwork in most homes.

Indoor air quality work
HVAC install System work
04 · Maintenance Plans

Cool Maintenance Plans.

Customized maintenance agreements tailored to your budget and the equipment you already own. Two visits a year keeps small problems from becoming July-evening problems.

Ask about a plan
  • Spring AC and fall furnace tune-ups, scheduled for you
  • Priority booking when something breaks
  • Filter changes and refrigerant checks on every visit
  • Customized to your home, system, and budget
  • Federal & local tax credit and rebate guidance
  • Wells Fargo financing partner for larger projects
A+
BBB rating
4.8 ★
202 Google reviews
60+
Combined tech years
24/7 Emergency

Furnace down at 11 p.m.? Call us.

Heating and cooling don't fail on a schedule. We answer the phone after hours, on weekends, and on holidays — and we promise to fix the problem right away.

What to expect

A visit that doesn't waste your morning.

01

You call or book online

Tell us what's going on. We give a real arrival window — not a four-hour guess.

02

A named technician shows up

Same crew our customers name in their reviews. They diagnose, walk you through what they found, and quote upfront.

03

It gets fixed right

No pressure to replace what can be repaired. When replacement is the right call, we lay out the rebates and financing.

Not sure which service you need?

Tell us what's going on. We'll figure it out together — no diagnostic pressure, no upsell theatre.

This is a draft services page for Cool Sunshine Heating & Air Conditioning — built by Glyph Sites.